Heald 271

271 HEALD SIZEMATIC BORE & FACE INTERNAL GRINDER
Remanufactured 2005


Swing over table diameter (straight work).............. 22"
Swing inside standard guard............................ 14"
Maximum length of hole................................. 5"
Maximum diameter of hole............................... 5 1/2"
Minimum diameter of hole............................... 1/8"
Maximum included angle (size‑matic only)............... 60 degrees
Center of chuck spindle from floor..................... 43 1/2"
Diameter of work head spindle flange................... 9 5/8"
Table travel........................................... 16"
Capacity of oil tank................................... 15 gallons
Capacity of coolant tank............................... 55 gallons

SPEEDS & FEEDS
Table speed, rapid traverse............................ 35 FPM
Table Speed, grinding.................................. 0‑20 FPM
Work head speeds.......................... 400, 266, 200, 133 RPM
One turn of cross feed hand wheel......... .060 on dia.
Wheel wear compensation on diameter.................... 0 to .004
Maximum power cross feed.................. .042 on dia.

DRIVE
Work head motor, standard voltages, 60 Cycles a‑c, infinite variable speed.
Oil pump motor............................ 2 HP, 1800 RPM
Wheel head motor.......................... 5 HP, 3600 RPM
Coolant pump motor........................ 1/2 HP, 1800 RPM
GENERAL DATA
Floor space with or without coolant tank............... 93" x 85"
Weight of machine, net, approximate.................... 7,400 lbs.
Gross weight, crated, approximate...................... 8,400 lbs.
Gross weight, boxed, approximate....................... 9,400 lbs.

EQUIPMENT & FEATURES
Red Head spindle.
Slide bar facing motorized spindle.
Coolant pump & tank.
Single point diamond dresser.
Spark‑out timers.
Facing dresser mounted on guard.
440 Volts, 3 Phase, 60 Cycle.